<template>
  <div class="dashboard-container">
    <div class="app-container">
      <!-- 靠右的按钮 -->
      <page-tools>
        <template v-slot:after>
          <el-button
            type="primary"
            size="small"
            @click="addPermission(1,'0')"
          >添加权限</el-button>
        </template>
      </page-tools>
      <!-- 表格 -->
      <!-- 指定id为唯一属性标识 -->
      <el-table
        border
        :data="list"
        row-key="id"
      >
        >
        <el-table-column
          label="名称"
          prop="name"
        />
        <el-table-column
          align="center"
          label="标识"
          prop="code"
        />
        <el-table-column
          align="center"
          label="描述"
          prop="description"
        />
        <el-table-column
          align="center"
          label="操作"
        >
          <template v-slot="{ row }">
            <!-- 添加按钮  只在访问权的层级显示 -->
            <el-button
              v-if="row.type ===1 "
              type="text"
              @click="addPermission(2,row.id)"
            >添加</el-button>
            <el-button
              type="text"
              @click="editPermission(row.id)"
            >编辑</el-button>
            <el-button
              type="text"
              @click="delPermission(row.id)"
            >删除</el-button>
          </template>
        </el-table-column>

      </el-table>
      <!-- 新增和编辑弹层 -->
      <el-dialog
        :title="showText"
        :visible="showDialog"
        @close="btnCancel"
      >
        <!-- 表单 -->
        <el-form
          ref="permForm"
          :model="formData"
          label-width="120px"
          :rules="rules"
        >
          <el-form-item
            label="权限名称"
            prop="name"
          >
            <el-input
              v-model="formData.name"
              style="width:90%"
            />
          </el-form-item>
          <el-form-item
            label="权限标识"
            prop="code"
          >
            <el-input
              v-model="formData.code"
              style="width:90%"
            />
          </el-form-item>
          <el-form-item label="权限描述">
            <el-input
              v-model="formData.description"
              style="width:90%"
            />
          </el-form-item>
          <el-form-item label="开启">
            <el-switch
              v-model="formData.enVisible"
              active-value="1"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>
        <el-row
          slot="footer"
          type="flex"
          justify="center"
        >
          <el-col :span="6">
            <el-button
              size="small"
              type="primary"
              @click="btnOK"
            >确定</el-button>
            <el-button
              size="small"
              @click="btnCancel"
            >取消</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { updatePermission, addPermission, getPermissionDetail, delPermission, getPermissionList } from '@/api/permission'
import { tranListToTreeData } from '@/utils'
export default {
  data () {
    return {
      list: [],
      showDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      }
    }
  },
  computed: {
    showText () {
      return this.formData.id ? '编辑权限' : '新增权限'
    }
  },
  created () {
    this.getPermissionList()
  }, methods: {
    // 获取数据
    async getPermissionList () {
      // 将数据转化成了树形
      this.list = tranListToTreeData(await getPermissionList(), '0')
    },
    // 删除
    delPermission (id) {
      this.$confirm('确定删除该权限点吗？').then(() => {
        return delPermission(id)
      }).then(() => {
        this.$message.success('删除成功')
        this.getPermissionList()
      })
    },
    // 添加
    addPermission (type, pid) {
      // 访问权的type=1 按钮操作的type=2  pid父节点的标识
      // 记录当前添加的类型和父标识
      this.formData.type = type
      this.formData.pid = pid
      this.showDialog = true
    },
    // 编辑
    async editPermission (id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    },
    // 点击确定按钮
    btnOK () {
      this.$refs.permForm.validate().then(() => {
        // 校验成功
        if (this.formData.id) {
          return updatePermission(this.formData)
        }
        return addPermission(this.formData) // 新增接口
      }).then(() => {
        this.$message.success('操作成功')
        this.getPermissionList()
        this.showDialog = false
      })
    },
    // 点击取消按钮
    btnCancel () {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      }
      // 移除校验规则
      this.$refs.permForm.resetFields()
      // 关闭弹层
      this.showDialog = false
    }
  }
}
</script>

<style>
</style>
